From: Bruce Richardson <bruce.richardson@intel.com>
To: Avner Taieb <avner@reduxio.com>
Cc: "Roberts, Lee A." <lee.roberts@hpe.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] Need Help for Intel - i40e , XL710 40GbE Controller
Date: Thu, 5 Mar 2020 09:23:34 +0000 [thread overview]
Message-ID: <20200305092334.GB289@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <CANBJLZEzZeYPqDG1L=fd6_xMkfKBHW_YXSGFZJSRVABF=ev0AQ@mail.gmail.com>
On Wed, Mar 04, 2020 at 08:05:27PM +0200, Avner Taieb wrote:
> Thanks Lee. I already read it and tried the potential remedy that is
> suggested i.e. enabling the multi driver support , but it didn't solved the
> problem.
> Are there more setting documented anywhere ?
>
Did you try using igb_uio driver from DPDK as the kernel module to see if
that works? The IOMMU grouping of the ports may be causing issues.
/Bruce
> On Wed, Mar 4, 2020 at 7:33 PM Roberts, Lee A. <lee.roberts@hpe.com> wrote:
>
> > See https://www.kernel.org/doc/Documentation/networking/i40e.rst, in
> > particular,
> > read the paragraph on "Unexpected Issues when the device driver and DPDK
> > share a device".
> >
> > - Lee
> >
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Avner Taieb
> > Sent: Wednesday, March 4, 2020 9:48 AM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev] Need Help for Intel - i40e , XL710 40GbE Controller
> >
> > Hi,
> > I am using XL710 40GbE Controller with two ports.
> > The way I am using them is one port is configured to vfio-pci for using
> > with dpdk in user space and the other is left to the kernel driver and for
> > a seperate application that does not use DPDK.
> > As soon as DPDK initialize and start the port, the other port
> > become unusable.
> >
> > Is there any setting/configuration that I am missing ?
> >
> > Thanks,
> > Avner
> >
next prev parent reply other threads:[~2020-03-05 9:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-04 16:48 Avner Taieb
2020-03-04 17:33 ` Roberts, Lee A.
2020-03-04 18:05 ` Avner Taieb
2020-03-05 9:23 ` Bruce Richardson [this message]
2020-03-05 14:11 ` Avner Taieb
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